An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream. The objects can be read
(reconstituted) using an ObjectInputStream.
When ObjectOutputStream is used with files opened in append mode, it can cause data corruption and unexpected behavior. This is
because when ObjectOutputStream is created, it writes metadata to the output stream, which can conflict with the existing metadata when
the file is opened in append mode. This can lead to errors and data loss.
When used with serialization, an ObjectOutputStream first writes the serialization stream header. This header should appear once per
file at the beginning. When you’re trying to read your object(s) back from the file, only the first one will be read successfully, and a
StreamCorruptedException will be thrown after that.
